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50K ultra runs in Hertfordshire in November 2025

Find 50k ultra runs near me in Hertfordshire in November 2025 - filter by date or location, display on a map or use the advanced search to find your perfect race.

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Welcome to the Fireworks Festival of Running! Come and tackle the track to see whether you can complete more than a marathon over multiple laps of the 400m circuit.
  • Sat 1 Nov
  • £35.50-£37.50
  • Sat 1 Nov
  • £35.50-£37.50
Ware, Hertfordshire, UK

Catherine Wheel Canter | Ultra Marathon

Welcome to the Fireworks Festival of Running! Come and tackle the track to see whether you can complete more than a marathon over multiple laps of the 400m circuit.

  • Chip timing
  • Enter online
  • Flat
  • Traffic free
  • Age 18 & over
  • 50 km track and field
Welcome to the Fireworks Festival of Running! Come and tackle the track to see whether you can complete more than a marathon over multiple laps of the 400m circuit.
  • Sat 1 Nov
  • £35.50-£37.50
  • Sat 1 Nov
  • £35.50-£37.50
Ware, Hertfordshire, UK

Guy Fawkes Gallop | Ultra Marathon

Welcome to the Fireworks Festival of Running! Come and tackle the track to see whether you can complete more than a marathon over multiple laps of the 400m circuit.

  • Chip timing
  • Enter online
  • Flat
  • Traffic free
  • Age 18 & over
  • 50 km track and field
  • Sat 1 Nov
Berkhamsted, Hertfordshire, UK

Chiltern Ridge Winter 50K

  • 50 km trail running + 800 m ascent

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